Which statement is true about the rotational period of the moon? A) equal to the revolution period around Earth

B) always changing

C) greater than the revolution period around Earth

D) less than the revolution period around Earth

Wavelength divides in half and speed stays the same.

Cis the

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.